# LeetCode: Power of Four Solution

*School math*

## Approach

Change base

## Implementation

1var isPowerOfFour = function (n) {2 const getBaseLog = (x, y) => Math.log(y) / Math.log(x)34 return Number.isInteger(getBaseLog(4, n))5}

## References

Logarithm change of base rule (Khan Academy)

## Similar problems

## Comments

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## Tags

leetcode

math

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